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Patterns in subtidal seaweed communities on coral-dominated reefs at Sodwana Bay on the KwaZulu-Natal coast, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJ Anderson C McKune JJ Bolton O Declerck E TronchinSubtidal seaweed communities of the northern coast of KwaZulu-Natal (KZN) have not been studied before. At Sodwana Bay, we tested the hypotheses that the seaweed communities would (1) differ floristically with depth, (2) be more species-rich in shallower water, (3)... -
Baseline assessment of high-latitude coral reef fish communities in southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Floros --- , South Africa MH Schleyer --- , South Africa JQ Maggs --- , South Africa L Celliers --- , South AfricaThe Western Indian Ocean (WIO) is a region where detailed coral reef fish research has been relatively limited. This study constitutes an assessment of the fish communities of seven southern African high-latitude coral reefs. The aim was to provide ichthyological... -
Comparing fish communities in sanctuaries, partly protected areas and open-access reefs in South-East Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JC Currie --- Department of Zoology, South Africa KJ Sink --- , South Africa P Le Noury --- , South Africa GM Branch --- Department of Zoology, South AfricaFish were surveyed by visual census on offshore reefs in Mozambique and eastern South Africa to compare (a) fully-protected ‘sanctuary’ areas, (b) ‘partly protected’ areas where recreational diving and limited fishing are permitted, and (c) ‘open’ unprotected areas. Community composition... -
Spatial diversity of nematode and copepod genera of the coral degradation zone along the Kenyan coast, including a test for the use of higher-taxon surrogacy
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M De Troch M Raes A Muthumbi H Gheerardyn A VanreuselThe biodiversity of meiofauna in the coral degradation zone along the Kenyan coast was examined with special emphasis on the most abundant taxa, Copepoda and Nematoda. Communities from three microhabitat types (coralline sediment, coral gravel and coral fragments) at two... -
Effects of herbivore grazing on the physiognomy of the coralline alga Spongites yendoi and on associated competitive interactions
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GW Maneveldt DW KeatsThe territorial gardening limpet Scutellastra cochlear occurs along the south and southern west coasts of South Africa, whereas one of its primary food items, the encrusting coralline alga Spongites yendoi, extends much farther north along the West Coast. A combined... -
Differential effects of thermal and chemical stressors on tissue balls from scleractinian corals
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Mattan-Moorgawa --- Department of Biosciences, Faculty of Science, Mauritius G Poonet --- Department of Biosciences, Faculty of Science, Mauritius R Bhagooli --- Department of Biosciences, Faculty of Science, Mauritius S Rughooputh --- Department of Physics, Faculty of Science, MauritiusCoral cell aggregates (tissue balls) from four species (Acropora muricata, Fungia repanda, Pavona cactus and Pocillopora damicornis) were used as an indicator to investigate the effects on the corals of thermal stress and of chemical extracts from three sponges (Adocia... -
Estimation of size at first maturity in two South African coral species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PH Montoya-Maya --- Oceanographic Research Institute, Marine Parade, South Africa AHH Macdonald --- School of Life Sciences, South Africa MH Schleyer --- Oceanographic Research Institute, Marine Parade, South AfricaThe corals Acropora austera and Platygyra daedalea have been the subject of extensive reproductive and population genetic studies in the iSimangaliso Wetland Park (iSimangaliso), on the KwaZulu-Natal coast, eastern South Africa. Despite this, estimates of size at first maturity in... -
A Porites lutea climate record from Sodwana Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Hayman --- School of Agriculture, Earth and Environmental Sciences, Geological Sciences, South Africa R Uken --- School of Agriculture, Earth and Environmental Sciences, Geological Sciences, South AfricaWe report on a 41-year (winter 1970 to winter 2010) Porites lutea coral core climate record from Two-Mile Reef, Sodwana Bay, in the South-Western Indian Ocean. X-ray analysis, ultraviolet fluorescent photography and stable isotope (δ18O and δ13C) analysis revealed skeletal... -
Successful treatment of cutaneous mucormycosis in a young diabetic with end-stage renal disease using combination systemic antifungal agents
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Korb --- Life Wilgeheuwel Hospital, South Africa PH Sonnekus --- Life Wilgeheuwel Hospital, South AfricaThis article reports successful eradication of isolated cutaneous mucormycosis in a young poorly controlled type 1 diabetic patient with end-stage renal disease using a combination of systemic antifungal agents and aggressive surgical debridement. -
Reef fishes recruited at midwater coral nurseries consume biofouling and reduce cleaning time in Seychelles, Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Frias-Torres --- Nature Seychelles, Republic of Seychelles H Goehlich --- Nature Seychelles, Republic of Seychelles C Reveret --- Nature Seychelles, Republic of Seychelles PH Montoya-Maya --- Nature Seychelles, Republic of SeychellesIn coral reef restoration, coral gardening involves rearing coral fragments in underwater nurseries prior to transplantation. These nurseries become fish-aggregating devices and attract biofouling. We hypothesised that: (1) the presence of corals at a nursery is critical to recruit fish... -
Spatio-temporal patterns of coral recruitment at Vamizi Island, Quirimbas Archipelago, Mozambique
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Sola --- School of Life Sciences, South Africa I Marques da Silva --- Faculdade de Ciências Naturais, Moçambique D Glassom --- School of Life Sciences, South AfricaSpatial and temporal patterns of recruitment of reef corals were assessed for the first time in Mozambique by deploying settlement plates at various spatio-temporal scales between October 2012 and October 2013. The abundance of juvenile corals (5−50 mm in diameter) was... -
Influence of local environmental conditions and bleaching histories on the diversity and distribution of Symbiodinium in reef-building corals in Tanzania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LJ Chauka --- Institute of Marine Sciences, Tanzania G Steinert --- Institute for Chemistry and Biology of the Marine Environment (ICBM), Germany MSP Mtolera --- Institute of Marine Sciences, TanzaniaPollution, turbidity and coral bleaching history, as well as coral diversity, vary along the Tanzanian coastline. Prior to this study, it was not known whether exposure to such environmental variation might have influenced the diversity and distribution of Symbiodinium along... -
Sublittoral seaweed communities on natural and artificial substrata in a high-latitude coral community in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Gersun --- Department of Biological Sciences and Marine Research Institute, South Africa RJ Anderson --- Department of Biological Sciences and Marine Research Institute, South Africa JR Hart --- Oceanographic Research Institute, South Africa GW Maneveldt --- Department of Biodiversity and Conservation Biology, South Africa JJ Bolton --- Department of Biological Sciences and Marine Research Institute, South AfricaCoral mortality may result in macroalgal proliferation or a phase shift into an alga-dominated state. Subtidal, high-latitude western Indian Ocean coral communities at Sodwana Bay on the KwaZulu-Natal coast, South Africa, have experienced some mortality because of warm-water anomalies, storms... -
Intraspecific cleaning by juvenile Cape white seabream Diplodus capensis (Sparidae) off eastern South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PC Sikkel --- Department of Biological Sciences and Environmental Sciences Program, USA NJ Smit --- Water Research Group, Unit for Environmental Sciences and Management, South AfricaJuveniles of the Cape white seabream Diplodus capensis were observed cleaning adult conspecifics in a large tidepool off Sodwana Bay, South Africa. Although nine other tropical fish species were present and interacted with a nearby pair of Labroides cleaner wrasses,... -
Terrestrial discharge influences microbioerosion and microbioeroder community structure in coral reefs
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SA Mwachireya --- Kenya Marine and Fisheries Research Institute (KMFRI), Kenya M Carreiro-Silva --- Department of Oceanography and Fisheries (IMAR network), Portugal BE Hartwick --- Department of Biological Sciences, Canada TR McClanahan --- Wildlife Conservation Society, Marine Programs, USAMicrobioerosion rates and microbioeroder community structure were studied in four Kenyan protected coral-reef lagoons using shell fragments of Tridacna giant clams to determine their response to the influence of terrestrial run-off. Fourteen different microbioeroder traces from seven cyanobacteria, three green... -
Megabenthos and benthopelagic fishes on Southeast Atlantic seamounts
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: OA Bergstad --- Institute of Marine Research (IMR), Norway M Gil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain ÅS Høines --- Institute of Marine Research (IMR), Norway R Sarralde --- Instituto Espanol de Oceanografia, Centro Oceanografico de Canarias, Spain E Maletzky --- Ministry of Fisheries and Marine Resources, Namibia E Mostarda --- Food and Agriculture Organization of the United Nations (FAO), Italy L Singh --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa MA António --- Secretary of State of Affairs, Ministry of Agriculture, Rural Development and Fisheries, Angola F Ramil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain P Clerkin --- Pacific Shark Research Center (PSRC), Moss Landing Marine Laboratories, United States G Campanis --- South East Atlantic Fisheries Organisation (SEAFO) Secretariat, NamibiaIn a descriptive study of megafauna of several Southeast Atlantic seamounts, multiple video-transects on upper slopes and summits documented the occurrence of benthic invertebrate taxa, primarily corals, regarded as indicators of vulnerable marine ecosystems (VMEs) as defined in international guidelines... -
Spatial patterns and environmental risks of ringnet fishing along the Kenyan coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P Thoya --- Kenya Marine and Fisheries Research Institute, Kenya S Pérez-Jorge --- Marine and Environmental Sciences Centre (MARE) and Institute of Marine Research (IMAR), Portugal GM Okemwa --- Kenya Marine and Fisheries Research Institute, Kenya H Mwamlavya --- Kenya Marine and Fisheries Research Institute, Kenya A Tuda --- Kenya Wildlife Service, Kenya N Wambiji --- Kenya Marine and Fisheries Research Institute, Kenya JM Maina --- Department of Environmental Sciences, AustraliaRingnet fishing began in the early 20th century and is practised worldwide, mainly to target nearshore pelagic species. The method was introduced to Kenya’s coastal waters by migrant fishers from Tanzania. However, the impacts of this fishing gear remain poorly... -
Standardising English and Afrikaans common names for polychaetes harvested as bait in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Carol A Simon --- , South Africa Alheit N du Toit --- , South Africa Stephen J Lamberth --- , South Africa George M Branch --- , South AfricaPolychaete worms are used widely as bait in South Africa, but common names are not used consistently among fishers or in the literature. This can have implications for conservation, since different polychaete species will not be equally vulnerable to exploitation,... -
Serpulid diversity of coralligenous build-ups in the southwestern Ionian Sea
Item type: Journal Article • Journal: African Zoology • Authors: Rossana Sanfilippo --- University of Catania, Italy Gemma Donato --- University of Catania, Italy Francesco Sciuto --- University of Catania, Italy Adriano Guido --- University of Calabria, Italy Mara Cipriani --- University of Calabria, Italy Valentina Alice Bracchi --- University of Milano-Bicocca, Italy Alfio Viola --- University of Catania, Italy Daniela Basso --- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Italy Antonietta Rosso --- University of Catania, ItalyCoralligenous build-ups in the Ionian Sea off southeastern Sicily, Italy, first discovered about 20 years ago, were recently studied as part of the Italian FISR project ‘CresciBluReef’. Coralligenous build-ups are a priority habitat in the Mediterranean Sea, yet their origin...